Abstract:
일실시형태에의한반도체장치(SP1)는배선기판(2)의기재층(2CR)과반도체칩(3)의사이에, 기재층과밀착되는솔더레지스트막(SR1: 제1 절연층), 솔더레지스트막및 반도체칩과밀착되는수지체(4: 제2 절연층)가적층되어있다. 또한, 솔더레지스트막의선팽창계수는기재층의선팽창계수이상이며, 솔더레지스트막의선팽창계수는수지체의선팽창계수이하이며, 또한기재층의선팽창계수는수지체의선팽창계수보다도작은것이다. 상기구성에의해, 온도사이클부하에기인하는반도체장치의손상을억제하여, 신뢰성을향상시킬수 있다.
Abstract:
인쇄 회로 기판(214)에 실장된 집적 회로(208)를 고정하고 이 집적 회로에 의해 생성되는 초과 열을 제거하며, 컴팩트한 컴퓨팅 환경에서 동작하기에 적합한 낮은 Z 프로파일 통합 열 모듈이 개시된다. 이 통합 열 모듈은, 감소된 풋프린트를 가지며, 집적 회로와 열 접촉하여 인쇄 회로 기판의 제1 표면 상에 배치된 열 제거 어셈블리(202, 204, 206)를 포함한다. 유지 메커니즘(210)은 인쇄 회로 기판의 제2 표면 상에 배치되고, 배커 플레이트(218)는 유지 메커니즘과 인쇄 회로 기판 사이에 배치된다. 적어도 하나의 파스너(212)는 열 제거 어셈블리를 배커 플레이트 및 유지 메커니즘에 고정시키고, 유지 메커니즘은 실질적으로 균일한 유지력이 배커 플레이트에 걸쳐 가해지도록 하고, 그에 의해 집적 회로에 가해지는 토크의 양을 최소화한다.
Abstract:
PURPOSE: An apparatus for determining position of surface mounting semiconductor IC is provided to enable a surface mounting semiconductor IC to be exactly positioned on a circuit board. CONSTITUTION: A body includes an IC chip, an electric wiring, a substrate, and a wire bonder. A lead pin is protruded on a surface of a surface mounting semiconductor IC to electrically connect to a circuit board. The semiconductor IC is quadrangular shaped and has positioning members(50) on four edge portions thereof to guide a position to be mounted when the semiconductor IC is mounted on the circuit board through a surface mounter. The positioning members(50) are formed at a position higher than the lead pin, whereby it is easily detected whether the semiconductor IC is wrongly assembled on the circuit board. Two positioning members(50) may be installed in diagonal direction in accordance with workability. A point terminal which is electrically connected with the lead pin is formed on a terminal surface in the circuit board(20) on which the semiconductor IC is assembled. Positioning holes(54) which are coupled to the positioning members(50) of the semiconductor IC are also formed on the terminal surface.
Abstract:
The printed circuit board includes a number of non-through holes formed in the thickness direction. Throughholes are formed in selected non-through holes. Conductive lands are formed on the periphery of the openings of the non-through holes. A second set of conductive lands are formed on the periphery of the openings of the through holes on the opposite surface and having a smaller outside diameter than the other lands. Conductors formed on the inside wall of the non-through holes and the through holes connect the conductive lands in one surface with the conductive lands in the opposite surface.
Abstract:
A control circuit board 1 includes a first and second elements 5, 6 on each surface of a board member 4. The first and the second elements 5, 6 respectively have first and third edge portions 9, 11 which are opposite to each other and second and fourth edge portions 10, 12 which are opposite to each other. A plurality of signal input pins I1 to I5 are provided to the first edge portion 9, a plurality of signal output pins O1 to 05 are provided to the third edge portion 11, a plurality of between-element communication input pins A1 ˆ¼ to A5 are provided to the second edge portion 10, and a plurality of between-element communication output pins B1 to B5 are provided to the fourth edge portion 12, respectively. A common signal is input to the first and second elements 5, 6 and a communication is performed between the first element 5 and the-second element 6. Loss of control function can be surely prevented while suppressing enlargement of the board and increase of development/production cost.
Abstract:
A control circuit board 1 includes a first and second elements 5, 6 on each surface of a board member 4. The first and the second elements 5, 6 respectively have first and third edge portions 9, 11 which are opposite to each other and second and fourth edge portions 10, 12 which are opposite to each other. A plurality of signal input pins I1 to I5 are provided to the first edge portion 9, a plurality of signal output pins O1 to 05 are provided to the third edge portion 11, a plurality of between-element communication input pins A1 ∼ to A5 are provided to the second edge portion 10, and a plurality of between-element communication output pins B1 to B5 are provided to the fourth edge portion 12, respectively. A common signal is input to the first and second elements 5, 6 and a communication is performed between the first element 5 and the-second element 6. Loss of control function can be surely prevented while suppressing enlargement of the board and increase of development/production cost.
Abstract:
Method and system for depositing a frozen adhesive particle at a predetermined spot on a target body, comprising launching means (13) which are arranged to launch the particle (2) in its frozen form towards the target body (3, 4) via a movement path (14) through a gap (15) between the launching means and the target body. The medium in the gap may have a temperature above the adhesive particle's melting temperature. The launching means may be arranged to launch the particle at a high speed. The launching means and the target body may have a geometry causing that the movement path is substantially vertical or substantially horizontal.
Abstract:
A method and apparatus are provided for connecting area grid array semiconductor chips (30) to a printed wire board (40). A compliant lead matrix (10) includes a carrier (12) and a plurality of conductive leads (14) arranged parallel to one another and secured relative to the carrier (12) in the form of a matrix. The method includes orienting a first side (16) of the lead matrix (10) to be aligned with a reciprocal matrix of conductive surface pads (36) on the area grid array semiconductor chip (30). First ends (20) of the leads are electrically connected to the conductive surface pads (36) of the area grid array chip (30). The second side (18) of the lead matrix (10) is oriented to be aligned with a reciprocal matrix of conductive surface pads (46) on a printed wire board (40). Second ends (22) of the leads (14) of the lead matrix (10) are electrically connected to the conductive surface pads (46) of the printed wire board (40) thereby establishing an electrical connection between the area grid array chip (30) and the printed wire board (40).